class C {
  new C.named();
  new C.named() : this.i = 0;
  new C.named() : this.i = 0 {}
  new C.named() {}
  const new C.named();
  const new C.named() : this.i = 0;
  const new C.named() : this.i = 0 {}
  const new C.named() {}
}
